Finetune demo content (#8)

* Reword to black in black like the others

* Remove role=button

Author: ryanve

index.html

@@ -21,7 +21,7 @@ <h1 class="volume-8 pad-0">tape</h1>
 
 <figure class="m-auto m-down">
   <figure class="tape-black pad-1 volume-4 m-auto">
-    <span class="tape-black">black</span> is dynamic
+    <span class="tape-black">black</span> in black
   </figure>
   <figure class="tape-green pad-1 volume-4 m-auto">
     <span class="tape-black">black</span> in green
@@ -42,18 +42,18 @@ <h1 class="volume-8 pad-0">tape</h1>
 
 <figure class="tape-clean tape-yellow pad-1 volume-2 m-auto m-down">
   <figcaption>clean</figcaption>
-  <figure><button role="button">button</button> <input value="input"> <a href="#example-link">:link</a></figure>
-  <figure><button class="tape-yellow" role="button">button</button> <input value="input" class="tape-yellow"> <a href="#example-link" class="tape-yellow">:link</a></figure>
-  <figure><button class="tape-black" role="button">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-black">:link</a></figure>
-  <figure><button class="tape-white" role="button">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-white">:link</a></figure>
+  <figure><button>button</button> <input value="input"> <a href="#example-link">:link</a></figure>
+  <figure><button class="tape-yellow">button</button> <input value="input" class="tape-yellow"> <a href="#example-link" class="tape-yellow">:link</a></figure>
+  <figure><button class="tape-black">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-black">:link</a></figure>
+  <figure><button class="tape-white">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-white">:link</a></figure>
 </figure>
 
 <figure class="tape-clean tape-flat tape-yellow pad-1 volume-2 m-auto m-down">
   <figcaption>clean and flat</figcaption>
-  <figure><button role="button">button</button> <input value="input"> <a href="#example-link">:link</a></figure>
-  <figure><button class="tape-yellow" role="button">button</button> <input value="input" class="tape-yellow"> <a href="#example-link" class="tape-yellow">:link</a></figure>
-  <figure><button class="tape-black" role="button">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-black">:link</a></figure>
-  <figure><button class="tape-white" role="button">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-white">:link</a></figure>
+  <figure><button>button</button> <input value="input"> <a href="#example-link">:link</a></figure>
+  <figure><button class="tape-yellow">button</button> <input value="input" class="tape-yellow"> <a href="#example-link" class="tape-yellow">:link</a></figure>
+  <figure><button class="tape-black">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-black">:link</a></figure>
+  <figure><button class="tape-white">button</button> <input value="input" class="tape-white"> <a href="#example-link" class="tape-white">:link</a></figure>
 </figure>
 
 <footer class="m-auto m-down volume-5">